package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Objects;

@Service
public class SetmealServiceImpl implements SetmealService {
    @Autowired
    public SetmealMapper setmealMapper;
    @Autowired
    public SetmealDishMapper setmealDishMapper;
    @Override
    public void saveWithDish(SetmealDTO setmealDTO) {
        //保存套餐信息
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);
        setmealMapper.save(setmeal);
        Long id = setmeal.getId();
        //保存套餐菜品关系
        List<SetmealDish> setmealDishes;
        setmealDishes = setmealDTO.getSetmealDishes();
        setmealDishes.forEach(
        setmealDish -> {
            setmealDish.setSetmealId(id);
        });
        setmealDishMapper.saveBatch(setmealDishes);
    }

    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> records=setmealMapper.pageQuery(setmealPageQueryDTO);
        long total = records.getTotal();
        return new PageResult(total,records);
    }

    @Override
    public void deleteBatch(List<Long> ids) {
        //删除套餐表中的数据
        for (Long id : ids){
            Setmeal setmeal=setmealMapper.getById(id);
            if (Objects.equals(setmeal.getStatus(), StatusConstant.ENABLE))
                throw new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
//            setmealMapper.deleteById(id);
        }
        //删除套餐和菜品的关联数据
        setmealMapper.deleteBatch(ids);
        setmealDishMapper.deleteBatch(ids);
    }

    @Override
    public SetmealVO getByIdWithDish(Long id) {
        SetmealVO setmealVO=new SetmealVO();
        Setmeal setmeal=setmealMapper.getById(id);
        List<SetmealDish> setmealDishes=setmealDishMapper.getById(id);
        BeanUtils.copyProperties(setmeal,setmealVO);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    @Override
    public void updateWithDish(SetmealDTO setmealDTO) {
        //更新套餐表
        Setmeal setmeal=new Setmeal();
        BeanUtils.copyProperties(setmealDTO,setmeal);
        setmealMapper.update(setmeal);
        //删除套餐菜品关系表中的数据
        setmealDishMapper.deleteById(setmealDTO.getId());
        //插入套餐菜品关系数据
        List<SetmealDish> setmealDishes=setmealDTO.getSetmealDishes();
        setmealDishes.forEach(setmealDish -> {
            setmealDish.setSetmealId(setmeal.getId());
        });
        setmealDishMapper.saveBatch(setmealDishes);
    }

    @Override
    public void startOrStop(Integer status, Long id) {
        Setmeal setmeal = Setmeal
                .builder()
                .id(id)
                .status(status)
                .build();
        setmealMapper.update(setmeal);
    }
    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }

}
